Records of the Geological Survey of India, Volume 121, Parts 2-8The Survey, 1993 - Earthquakes Vols. 1- include Report of the Geological Survey, 1867- ; v. 32- include Review of the mineral production of India, 1898/1903- ; v. 75 consists of Professional papers, no. 1-16; v. 76 consists of Bulletins of economic minerals. |
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Page 10
... dykes and sills . The dykes can be grouped into three clusters ; namely , the WNW - ESE , ENE - WSW and N - S , of which the WNW - ESE and N - S clusters are developed locally whereas the ENE - WSW cluster has a regional sig- nificance ...
... dykes and sills . The dykes can be grouped into three clusters ; namely , the WNW - ESE , ENE - WSW and N - S , of which the WNW - ESE and N - S clusters are developed locally whereas the ENE - WSW cluster has a regional sig- nificance ...
Page 11
... dykes and they spread over the basaltic country locally because of their low viscosity . Chemical analysis ( Table 1 ) of one sample ( K ) indicates high SiO , ( 67.03 % ) , Na2O + K2O ( 6.8 % ) and low Fe2O3 + FeO ( 5.53 % ) , MgO ...
... dykes and they spread over the basaltic country locally because of their low viscosity . Chemical analysis ( Table 1 ) of one sample ( K ) indicates high SiO , ( 67.03 % ) , Na2O + K2O ( 6.8 % ) and low Fe2O3 + FeO ( 5.53 % ) , MgO ...
Page 18
... dykes in the basalt lava flows . The dark green and coarsely crystalline picrite under the microscope shows sub ... dykes have intruded the lava flows and the gabbro massif in the area . The dolerite dykes are mostly confined to lava ...
... dykes in the basalt lava flows . The dark green and coarsely crystalline picrite under the microscope shows sub ... dykes have intruded the lava flows and the gabbro massif in the area . The dolerite dykes are mostly confined to lava ...
Contents
Structural Geometry of Ras Marble and its relationship with | 1 |
Geology of Deccan traps around TylsishyamKhambha | 9 |
Structural framework of folded Deccan basalts in Satpura 2 | 11 |
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Common terms and phrases
alkaline alluvial anomaly apatite Assam Baikunthapur basalt Beldih Bihar biotite block borehole burrows carbonaceous carbonatites Chalsa clay coal coastal colour Copper Belt correlation deposits district dykes flows fluvial folds Foothill Fault Zone fossils Ganga Geol Geological Survey geology and geomorphology geomorphology geophysical GHOSH gm British Museum gm Dr gm Prof gneisses grained granite Himalayas Holocene hornfels India INDIA Records Volume intrusion Jaldhaka Jharia Kutni Laterite lineament magma magnetic metamorphism meteorites migmatites mineral mineralisation mining olivine Orissa phyllites plagioclase Pleistocene quartz quartzite Quaternary geology Quaternary landforms Rajasthan Ras Marble Recent Flood Plain region Report rhyolite ridge river basin rocks sand sandstone scarp schist seams sediments shale Shear Zone Singhbhum slide slope Smithsonian Institution soil structure Surface Surface/formation Surv Survey of India synform tectonic Terrace thickness tion Tista Torsa trend Unconformity unpublished Uttar Pradesh vitrinite West Bengal